Damper-actuating mechanism



Feb. 14; 1928.

W. H. JARDINE DAMPER ACTUATING MECHANISM Filed March 22. 1927 2 Sheets-Sheet l Zia - ma.n 14, 192s.

W. H. JARDINE DAMPER ACTUATING MECHANISM Filed March 22. 1927 2 Sheets-Sheet 2 ATTORNEYS.

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Patented Feb. 14, 192th 'untreu srrns und? U XVLLIAM H. JARDINE, l? PHLADIELPHA, PENNSYLVANIA.

Drlll/lPER-ACTUATING MECHANISBI.

Application filed March 22, 1927. Serial No. 177,257.

rlhis invention generally stat-ed relates to a Ventilating apparatus and has more especial relation to `flue connection tlierebelow in the torni ot a damper regulating member.

The leading object ot the present invention may be said to reside in the provison oi simple, etiicient and comparatively inexpensive damper mechanism for a tlue in ivnich the damper parts may be manually or automatically operated in order to increase or decrease upward air movement through the flue.

A :further object ot the present invention is to provid-e a tlue in which a pair ot damper members are mounted upon ball bearings in order to readily respond to either mechanical or automatic operatingr;` means.

il. still tui-ther object oi the present invention is to provide a pair ot damper parts, oppositely disposed upon ball bearing` connections, `which members are operated either manually or automatically through vertical7 movable toggle joint connections.

@ther and further objects ot the present invention reside in the provision of general details of construction and arrangement and connection of parts ior attaining the results sought by the foregoing objects.

The invent-ion consists vot the novel con t struction hereinafter described and finally claimed.

The nature, characteristic features and scope oi' the invention will be more fully understood :trom the followingl description talienfin connection with the accompanying drawings, and in which:

Fig. l, is a view in central section7 tragment-ary in nature, illustrating' a tlue With the damper members in closed position, as shown in iull lines. and with the damper members in open position, as shown in dotted lines, said ligure being taken approxi'- mately upon the line l-l ot' 2.

Fig. 2, is a view in horizontal section taken upon the line 2-2 ot Fig. l, viewed in the direction ot the arrows.

i 3, is a fragmentary view upon an enlarged scale illustrating the toggle joint ar'- rangement ot' parts shown in Figs. land Q.

iig d, is a fragmentary view in plan of a ball bearing connection tor a ydamper member.

Fig. 5, is a fragmentary view7 in section, taken upon the line 5-5 et Fig. 4s.

Fig. t5, is a detailed view ot certain parts hereinafter referred to.

lio'. 8, a view in side elevation of -certain ot the parts shown in Fig. 3.

For the purpose oit' illustrating my invention l have shown in the accompanying drawings one forni thereof which is at-present `preterred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged .and organiz-ed and that my invention is not limited to the precise arrangement and organization ot the instrumentalities as herein shown and described.

Referring to the drawings in detail, reterence numeral l represents a flue which as shown in 2,` is of rectangular cross-section. Pivotally arranged Within vthe tine are a pair ot oppositely disposed damper inembers designated 2 and 3 respectively. These damper members each comprise a plate having a flanged portion din order to provide a relatively dished-shape arrangement, as clearly shown in Fig. l. Each oi the damper members 2 and 3 is pivotally connected at h its center, best seen in Fig. l. rllhe pivot points are ball bearing in nature, as best seen in Fig. 8, which ball bearing connections are designated 5. ln order to support the ball bearings which ball bearings it may be stated are oppositely disposed as to the damper members 2 and 3 respectively, as clearlyshown in Fig. 2, there is secured to the top ot each of the damper members Q and 3 a plate 6, relatively triangular in shape, which plates are riveted as at 'l'. rl'lhese platesti in turn have enlarged parts 8, see Figs. d and 5, which parts 8 are internally screW-tlu'eaded to receive screws .9 so that the ball bearing or anti-friction members may be secured with respect to the enlargements 8. ln practice these pla-tes 6 are secured to the Walls ot' the flue l, in the following manner: Riveted to the Wall` ot' the tlue l, as at l0, is a member l1, best seen in llig. G, which member is ,grooved as at 12 and is provided on its underside With a .flange 13. Fitted over the flanged partl of member l1 is another member 13,'see Fig. i. in which the ball bearing?,` or antitriction member 5 rests upon the flanged part 13, as clearly illustrated in Fig. 5. In

order to maintain the ball bearing or anti` friction bearing 5 with proper relation with respect to ledge 13, use is made ot the plate 15 secured as at 16 to member 11. In the connection, it may be stated that the ledges 17 of member l-l cooperatively engage the `ually operated or automatically operated as for instance through a thermostatic mecha nism. Since both manual mechanisms and thermostatic mechanism may be of any preerred type, illustration thereof has not been made in the present case since it is believed that it is apparent to those skilled in the art as to what may be employed.

Fixed to one side Wall ol: the tine 1, as by rivets or the like, is a plate 19, see Figs. 2. and 8. Arranged upon said plate there is a vertically slidable rod 1S which passes through a keeper 20. The upper portion of this rod 18 is slotted as at 21, reference now being had particularly to `Fig. 3. The top of said rod 18 has pivoted thereto as at 22 a pair ot oppositely disposed links 23 and 2a. These links in turn have pivotal connection as at 25 and 26 with members 27 and QS pivoted together as at 29 and slidable through slot 21 of rod 18. rlhus, as the rod 18 is, for example, moved upwardly, the slotted part 21 ot' said rod moves freely with respect to pivot Yjoint 29, but the 'tree end of said rod 1S causes the links 23 and 24; to pull upwardly the members 27 and Q8, which position is clearly shown in Fig. 3. Obviously the reverse4 movement ott rod 18 causes said members 27 and 28 to be moved downwardly. The members 27 and 28 carry rods 29, which rods 29 in turn have pivotal connection as at 3() with links 31, which links 31 have pivotal connection as at 32 with sockets 33 riveted as at 34, to the iinderside ot the damper members and It may be stated that the plate 19 has formed integ `al therewith, as at 35, a lug with which the slot 21 has movable relation. nis lng 35 has extending' horizontally therefrom a screw-threaded pin 36 with which the pivotal connection 29 may be effected. This structure is very clearly shown in Fig. S. To counter-balance the damper members 2 and 3 I make use of a lugl 35 secured to each olf said members 1 and 2 to which is fixed a rod 3G Which in turn carries a counter-balance 37 adjustable along said rod 36, a bearing 36 being provided for the outer end of each rod 36.

It will be understood that While I have shotvn and described the flue as being rectangular in cross-section and the (zo-operating damper sections as being rectilinear, it will be apparent that the tine and the damper men'ibcrs may be ot any other contour as round, oval or the like Without departing 'trointhe spirit of my invention.

It will be l'urther apparent that the damper operating mechanism can be located at other points than that shovrn, if desired, Without departing 'from the spirit ot my invention. .ihe members 29 are prcife ably made tubular .having their ends screwthreaded into their respective connections, so that any slight adjustment which may be necessari,v readily provided ior.

lt 1will now be apparent that ll have devised a novel and usetnl construction of damper actuating mechanism which einbodies the features ot' advantage enumerated as desirable in the statement ot the invention and the above description and .vliilc l have in the pref-:cnt instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the saine susceptible oit modilication in various particulars 'without departing 'from the spirit or scope ot the invention or sacrificing any ot its advantages.

Having thus described my invention, what n'hat l claim as new and desire to secure by Letters Patent, is:

1. il device ot the character stated, coiniLn-ising a tine, a pair ot enacting, opposed, damper members each centrally pivotcd in said line and arranged to .move in :in arc ot a circle, a plate lined to one aide Wall of said tine, said plate having a keeper, a vertically slotted rod vertically slidable through the keeper ot said plate, damper moving incinbers, a toggle joint connection comprising a pair ot links pivoted to said rod at their outer ends and pivoted to said damper moving members at their inner ends, and means' tor connecting the outer ends ot said damper moving members with respect to said dampcrs.

2. A device of the character stated, comprising al flue, a pair oit coacting, opposed, damper members each centrally pivoted in said Vflue and arranged to move in an arc ol a circle, a plate lined to one side wall oit said ilue, said plate having a keeper, a` vertically slotted rod vertically slidable through the keeper ol said plate, damper moving niembers each having an extension, a toggle joint connection comprising a pair of links pivoted to said rod at their outer ends and piv' oted to extensions upon said damper moving members at their inner ends, and meansl including links ttor connecting the outer ends oit' said damper moving nit-airliners with respect to said dan'ipers.

WLLIAM H. JARDINE.

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